Laser sintering is a 3D printing process that uses a high-powered laser to fuse small particles of material, typically plastic or metal, into a solid structure. The laser selectively melts the particles layer by layer, allowing for the creation of complex shapes and designs that would be difficult to achieve with traditional manufacturing methods. This technique is part of a broader category known as additive manufacturing, where materials are added together to build objects. Laser sintering is commonly used in industries such as aerospace, automotive, and healthcare for producing prototypes and end-use parts with high precision and durability.